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Finding the Fourth Proportional to 55,307.73, 82,961.88 and 13,754.73

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Solution

The fourth proportional to 55,307.73, 82,961.88 and 13,754.73 is: 20,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307.73 : 82,961.88 = 13,754.73 : x
  2. Step 2: Convert to fraction form
    55,307.73/82,961.88 = 13,754.73/x
  3. Step 3: Cross multiply
    55,307.73x = 82,961.88 × 13,754.73
  4. Step 4: Simplify right side
    55,307.73x = 1,141,118,259.69
  5. Step 5: Solve for x
    x = 1,141,118,259.69/55,307.73
  6. Step 6: Final answer
    x = 20,632.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.